Process for the preparation of gamma-butyrolactone

Details Process for the preparation of gamma-butyrolactone Process for the preparation of gamma-butyrolactone

1995-08-09

1997-06-10

Dentz, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

502307, C07D30733

Patent

active

056377355

ABSTRACT:
A process for vapor phase hydrogenation of maleic anhydride and/or succinic anhydride to .gamma.-butyrolactone, comprising contacting an alcoholic solution of a feedstock anhydride with reduced Cu-Zn-Cr-Zr catalyst under the conditions of hydrogenation.

REFERENCES:
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patent: 2772293 (1956-11-01), Gilbert et al.
patent: 3065243 (1962-11-01), Dunlop et al.
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patent: 3829448 (1974-08-01), Kanetaka et al.
patent: 3853922 (1974-12-01), Yamaguchi et al.
patent: 4001282 (1977-01-01), Miller
patent: 4668654 (1987-05-01), Drake et al.
Article entitled, "Vapour Phase Hydrogenation of Maleic Anhydride to .gamma.-Butyrolactone" by G.L. Castiglioni et al., Wissenschaft & Technik, 1994, pp. 146-149.

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